Xui knows everything about DJY's plans to raid the protectorate---and he knows about where the League has been hiding; he knows everything! And Geumlan is in a lot of danger as well, but she doesn't even know that she's been discovered.
And DJY's father is coming on the raid, which is now going to be a death-trap? Good Lord, are they going to make it out alive?!
(from the historical drama "The Immortal Yi Soon-Shin")
Yes, this is getting very strange. When the Goguryeans caught those two Tang spies in the hills, DJS deduced that they were trying to contact someone, which to him made it likely that the Goguryeans had been infiltrated. But there hasn't been any more mention of it since then. Have they forgotten? If so, they're gonna be sorry.